Double-tube linear axis VD3D series

manualaluminumprecision

The guide tubes of the double tube linear units VD3D are made of chrome-plated steel or polished stainless steel precision tubes. The aluminum end pieces connect the tubes and form a solid linear guide together with the guide element. Two independent spindles with ball bearings on each side are installed in the center. The thread direction of the spindles can be chosen as desired for each side. Together with the double guide elements, the affixed spindle nuts move linearly along the spindle thread, independently of the opposite side. Double tube linear units have high torsional stiffness and can handle high weights and torques. The double guide element distributes the load among four guide points, allowing for higher loads. Depending on the design, the part to be moved is fastened to the guide element or the guide element itself is installed at the place of use such that the entire linear unit moves together. Possible accessories are already taken into account in the selection of the linear units according to the options given in the tables. This ensures, for example, that the journal lengths z1 and z2 are appropriate for attachment of the accessories. The accessories are not included with the linear units.